百度poi搜索

package baidumapsdk.demo.search;

import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.AutoCompleteTextView;
import android.widget.EditText;
import android.widget.Toast;

import com.baidu.mapapi.map.BaiduMap;
import com.baidu.mapapi.map.BitmapDescriptor;
import com.baidu.mapapi.map.BitmapDescriptorFactory;
import com.baidu.mapapi.map.CircleOptions;
import com.baidu.mapapi.map.GroundOverlayOptions;
import com.baidu.mapapi.map.MapStatusUpdate;
import com.baidu.mapapi.map.MapStatusUpdateFactory;
import com.baidu.mapapi.map.MarkerOptions;
import com.baidu.mapapi.map.OverlayOptions;
import com.baidu.mapapi.map.Stroke;
import com.baidu.mapapi.map.SupportMapFragment;
import com.baidu.mapapi.model.LatLng;
import com.baidu.mapapi.model.LatLngBounds;
import com.baidu.mapapi.overlayutil.PoiOverlay;

import com.baidu.mapapi.search.core.CityInfo;
import com.baidu.mapapi.search.core.PoiInfo;
import com.baidu.mapapi.search.core.SearchResult;
import com.baidu.mapapi.search.poi.OnGetPoiSearchResultListener;
import com.baidu.mapapi.search.poi.PoiBoundSearchOption;
import com.baidu.mapapi.search.poi.PoiCitySearchOption;
import com.baidu.mapapi.search.poi.PoiDetailResult;
import com.baidu.mapapi.search.poi.PoiDetailSearchOption;
import com.baidu.mapapi.search.poi.PoiIndoorResult;
import com.baidu.mapapi.search.poi.PoiNearbySearchOption;
import com.baidu.mapapi.search.poi.PoiResult;
import com.baidu.mapapi.search.poi.PoiSearch;
import com.baidu.mapapi.search.poi.PoiSortType;
import com.baidu.mapapi.search.sug.OnGetSuggestionResultListener;
import com.baidu.mapapi.search.sug.SuggestionResult;
import com.baidu.mapapi.search.sug.SuggestionSearch;
import com.baidu.mapapi.search.sug.SuggestionSearchOption;

import java.util.ArrayList;
import java.util.List;
import baidumapsdk.demo.R;

/**

• 演示poi搜索功能
  */
  public class PoiSearchDemo extends FragmentActivity implements
  OnGetPoiSearchResultListener, OnGetSuggestionResultListener {

  private PoiSearch mPoiSearch = null;
  private SuggestionSearch mSuggestionSearch = null;
  private BaiduMap mBaiduMap = null;
  private List suggest;
  /**
  • 搜索關鍵字輸入窗口
    */
    private EditText editCity = null;
    private AutoCompleteTextView keyWorldsView = null;
    private ArrayAdapter sugAdapter = null;
    private int loadIndex = 0;

  LatLng center = new LatLng(39.92235, 116.380338);
  int radius = 100;
  LatLng southwest = new LatLng( 39.92235, 116.380338 );
  LatLng northeast = new LatLng( 39.947246, 116.414977);
  LatLngBounds searchbound = new LatLngBounds.Builder().include(southwest).include(northeast).build();

  int searchType = 0; // 搜索的類型，在顯示時區分

  @Override
  public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_poisearch);
  // 初始化搜索模塊，註冊搜索事件監聽
  mPoiSearch = PoiSearch.newInstance();
  mPoiSearch.setOnGetPoiSearchResultListener(this);

  // 初始化建議搜索模塊，註冊建議搜索事件監聽
   mSuggestionSearch = SuggestionSearch.newInstance();
   mSuggestionSearch.setOnGetSuggestionResultListener(this);
  
   editCity = (EditText) findViewById(R.id.city);
   keyWorldsView = (AutoCompleteTextView) findViewById(R.id.searchkey);
   sugAdapter = new ArrayAdapter<String>(this,
           android.R.layout.simple_dropdown_item_1line);
   keyWorldsView.setAdapter(sugAdapter);
   keyWorldsView.setThreshold(1);
   mBaiduMap = ((SupportMapFragment) (getSupportFragmentManager()
                                              .findFragmentById(R.id.map))).getBaiduMap();
   /**
    * 當輸入關鍵字變化時，動態更新建議列表
    */
   keyWorldsView.addTextChangedListener(new TextWatcher() {
  
       @Override
       public void afterTextChanged(Editable arg0) {
  
       }
  
       @Override
       public void beforeTextChanged(CharSequence arg0, int arg1,
                                     int arg2, int arg3) {
  
       }
  
       @Override
       public void onTextChanged(CharSequence cs, int arg1, int arg2,
                                 int arg3) {
           if (cs.length() <= 0) {
               return;
           }
  
           /**
            * 使用建議搜索服務獲取建議列表，結果在onSuggestionResult()中更新
            */
           mSuggestionSearch
                   .requestSuggestion((new SuggestionSearchOption())
                           .keyword(cs.toString()).city(editCity.getText().toString()));
       }
   });

  }

  @Override
  protected void onPause() {
  super.onPause();
  }

  @Override
  protected void onResume() {
  super.onResume();
  }

  @Override
  protected void onDestroy() {
  mPoiSearch.destroy();
  mSuggestionSearch.destroy();
  super.onDestroy();
  }

  @Override
  protected void onSaveInstanceState(Bundle outState) {
  super.onSaveInstanceState(outState);
  }

  @Override
  protected void onRestoreInstanceState(Bundle savedInstanceState) {
  super.onRestoreInstanceState(savedInstanceState);
  }

  /**
  • 響應城市內搜索按鈕點擊事件
  • @param v
    */
    public void searchButtonProcess(View v) {
    searchType = 1;
    String citystr = editCity.getText().toString();
    String keystr = keyWorldsView.getText().toString();
    mPoiSearch.searchInCity((new PoiCitySearchOption())
    .city(citystr).keyword(keystr).pageNum(loadIndex));
    }
  /**
  • 響應周邊搜索按鈕點擊事件
  • @param v
    */
    public void searchNearbyProcess(View v) {
    searchType = 2;
    PoiNearbySearchOption nearbySearchOption = new PoiNearbySearchOption().keyword(keyWorldsView.getText()
    .toString()).sortType(PoiSortType.distance_from_near_to_far).location(center)
    .radius(radius).pageNum(loadIndex);
    mPoiSearch.searchNearby(nearbySearchOption);
    }

  public void goToNextPage(View v) {
  loadIndex++;
  searchButtonProcess(null);
  }

  /**
  • 響應區域搜索按鈕點擊事件
  • @param v
    */
    public void searchBoundProcess(View v) {
    searchType = 3;
    mPoiSearch.searchInBound(new PoiBoundSearchOption().bound(searchbound)
    .keyword(keyWorldsView.getText().toString()));

  }

  /**
  • 獲取POI搜索結果，包括searchInCity，searchNearby，searchInBound返回的搜索結果

  • @param result
    */
    public void onGetPoiResult(PoiResult result) {
    if (result == null || result.error == SearchResult.ERRORNO.RESULT_NOT_FOUND) {
    Toast.makeText(PoiSearchDemo.this, "未找到結果", Toast.LENGTH_LONG)
    .show();
    return;
    }
    if (result.error == SearchResult.ERRORNO.NO_ERROR) {
    mBaiduMap.clear();
    PoiOverlay overlay = new MyPoiOverlay(mBaiduMap);
    mBaiduMap.setOnMarkerClickListener(overlay);
    overlay.setData(result);
    overlay.addToMap();
    overlay.zoomToSpan();

    switch( searchType ) {
         case 2:
             showNearbyArea(center, radius);
             break;
         case 3:
             showBound(searchbound);
             break;
         default:
             break;
     }
    
     return;

    }
    if (result.error == SearchResult.ERRORNO.AMBIGUOUS_KEYWORD) {

    // 當輸入關鍵字在本市沒有找到，但在其餘城市找到時，返回包含該關鍵字信息的城市列表
     String strInfo = "在";
     for (CityInfo cityInfo : result.getSuggestCityList()) {
         strInfo += cityInfo.city;
         strInfo += ",";
     }
     strInfo += "找到結果";
     Toast.makeText(PoiSearchDemo.this, strInfo, Toast.LENGTH_LONG)
             .show();

    }
    }

  /**
  • 獲取POI詳情搜索結果，獲得searchPoiDetail返回的搜索結果
  • @param result
    */
    public void onGetPoiDetailResult(PoiDetailResult result) {
    if (result.error != SearchResult.ERRORNO.NO_ERROR) {
    Toast.makeText(PoiSearchDemo.this, "抱歉，未找到結果", Toast.LENGTH_SHORT)
    .show();
    } else {
    Toast.makeText(PoiSearchDemo.this, result.getName() + ": " + result.getAddress(), Toast.LENGTH_SHORT)
    .show();
    }
    }

  @Override
  public void onGetPoiIndoorResult(PoiIndoorResult poiIndoorResult) {

  }

  /**
  • 獲取在線建議搜索結果，獲得requestSuggestion返回的搜索結果
  • @param res
    */
    @Override
    public void onGetSuggestionResult(SuggestionResult res) {
    if (res == null || res.getAllSuggestions() == null) {
    return;
    }
    suggest = new ArrayList ();
    for (SuggestionResult.SuggestionInfo info : res.getAllSuggestions()) {
    if (info.key != null) {
    suggest.add(info.key);
    }
    }
    sugAdapter = new ArrayAdapter (PoiSearchDemo.this, android.R.layout.simple_dropdown_item_1line, suggest);
    keyWorldsView.setAdapter(sugAdapter);
    sugAdapter.notifyDataSetChanged();
    }

  private class MyPoiOverlay extends PoiOverlay {

  public MyPoiOverlay(BaiduMap baiduMap) {
       super(baiduMap);
   }
  
   @Override
   public boolean onPoiClick(int index) {
       super.onPoiClick(index);
       PoiInfo poi = getPoiResult().getAllPoi().get(index);
       // if (poi.hasCaterDetails) {
       mPoiSearch.searchPoiDetail((new PoiDetailSearchOption())
               .poiUid(poi.uid));
       // }
       return true;
   }

  }

  /**
  • 對周邊檢索的範圍進行繪製
  • @param center

  • @param radius
    */
    public void showNearbyArea( LatLng center, int radius) {
    BitmapDescriptor centerBitmap = BitmapDescriptorFactory
    .fromResource(R.drawable.icon_geo);
    MarkerOptions ooMarker = new MarkerOptions().position(center).icon(centerBitmap);
    mBaiduMap.addOverlay(ooMarker);

    OverlayOptions ooCircle = new CircleOptions().fillColor( 0xCCCCCC00 )
    .center(center).stroke(new Stroke(5, 0xFFFF00FF ))
    .radius(radius);
    mBaiduMap.addOverlay(ooCircle);
    }

  /**
  • 對區域檢索的範圍進行繪製

  • @param bounds
    */
    public void showBound( LatLngBounds bounds) {
    BitmapDescriptor bdGround = BitmapDescriptorFactory
    .fromResource(R.drawable.ground_overlay);

    OverlayOptions ooGround = new GroundOverlayOptions()
    .positionFromBounds(bounds).image(bdGround).transparency(0.8f);
    mBaiduMap.addOverlay(ooGround);

    MapStatusUpdate u = MapStatusUpdateFactory
    .newLatLng(bounds.getCenter());
    mBaiduMap.setMapStatus(u);

    bdGround.recycle(); } }